Nowadays, more and more people are willing to travel with recreational vehicles, it is freer and you can enjoy beautiful scenes all around on your way travel. But considering the problem of hot water used on RV, most people may easily get puzzled.
What if I want to use endless hot water on RV?
Can I shower in the car?
You may ask the questions. Well, the answer is yes, and of course yes with the help of a best RV tankless water heater.
It weights light and can be installed anywhere you want on the vehicle, and the most important, you can enjoy flawlessly hot water on it, do not need to worry about running out of hot water when taking a bath any longer.
Here we offer you some top best RV tankless water heater reviews for you to choose:
Top 5 Best RV Tankless Water Heater
|#1. Camplux 5L 1.32 GPM Outdoor||4.6|
|#2. PrecisionTemp RV-550||4.5|
|#3. Excel Tankless Gas ||4.3|
|#4. Girard 2GWHAM On-Demand||4.1|
|#5. EcoSmart 11||4.1|
Best RV Tankless Water Heaters Reviews
This tankless water heater is really a cost-effective one, the price of which is pretty low. But do not get fooled by its cheap price, the performance of it is excellent. It needs only 2.5 PSI of water pressure to start up.
The temperature range of it is 46.4 degrees F to 114.8 degrees F, and the flow rate of it is 1.32 gallons per minute. Thus it is not suitable for the whole house or large family use but is perfect for RV or small cabins.
The anti frozen system protects the machine from being frozen in cold areas or weathers, and the copper heater highly heats resistance and corrosion resistance, promising to be long service life.
There are two buttons settings used for controlling temperature, one is for gas while the other for water flow, through adjusting the two buttons, you can get the suitable temperature, but needs some time.
The compact and stylish small shape is also one reason on choosing it as your best RV tankless water heater, you can install it anywhere that is convenient.
- Lowest water pressure
- Anti frozen protection
- Perfect for camping shower
- Stainless steel burner
- Compact size
- Turn it on and off quickly for controlling water flow
Hard to get the exact water temperature you want
The key feature of this RV tankless water heater is its wide range of applications, not only for RVs but it can also be used for a tiny home, trailers, cabins, and mobile washing services, etc.
It weights light, only 32 pounds, which means it helps save a large amount of space. It is said to take up half the space and weighs 1/3 as much as a 10-gallon tank. When it is installed on RV, the compact shape enables you to install it anywhere you want.
This unit equips with freeze protection devices; when it senses cold temperature under zero, it allows the burner to fire and electric elements on automatically to protect the system.
It provides 55000 BTU power and uses less propane than other types, thus is highly energy efficient. The automatic gas modulation system is adopted to regulate gas for sufficient water temperature.
- Freeze protection equipped
- Space saver
- The automatic gas modulation system
- Energy efficient
- Endless hot water supply
Long waiting time for hot water, takes about 1 minute
Like other types of RV tankless water heaters, this Excel heater is also designed compact, and weights light, you can easily take it anywhere and install in your vehicle.
Once it turns on, it takes only a few seconds for hot water to flow out of the pipe, it is able to provide constant hot water for you, brings you satisfying enjoyment on taking a bath or washing hands on your way out for traveling.
The required water pressure is low, it starts with only 2 PSI of water pressure, and no pressurizer pump is needed. Besides, the best feature of it is its vent-free appliance, which means you can install it inside your vehicle or home without adding venting facilities.
Two buttons are set on the machine, one is for gas while the other is for water flow, through the adjustment of the two buttons, you can get the exact temperature you want.
- Energy efficient
- Easy operated
- Space much space
- Operates at the low water pressure
- Venting free design
The installation instructions are not so clearly
This tankless water heater is able to provide stable water temperature, it has a self-modulation system, regulates the burner to maintain water temperature in different using conditions automatically.
Like PrecisionTemp, this tankless water heater is also equipped with freeze protection, thus it is capable of using in winter or cold areas. The system protects the machine automatically when it reaches freezing temperature.
For this unit, 42000 BTU power is required for best and ideal performance, it needs no special LP gas lines or special plumbing. It operates at least 3 amps. The quiet brushless motor enables you to enjoy the satisfying using experience without any working noisy.
Also, from the shape we can see how small it is, when it is installed on RV, it occupies only a small piece of land. Thus it can be a perfect one for RV tankless hot water heater.
- Quiet working performance
- No special plumbing required
- Freeze protection system
- Regulate water temperature automatically
- Stylish compact shape
You need to buy extra mounting hardware
EcoSmart is one of the top brands of electric tankless water heater, among the products line, EcoSmart 11 is the least powerful and the most compact one, thus it is a perfect choice for RV or small tiny cabins or homes use. You can also use it in traveling because of its lightweight.
It is equipped with self-modulating technology, which means it only operates when hot water is demanded. With such a system, it saves much energy for you each month. But it also has the problem of unstable water temperature, it gets cold and warm from time to time.
It bears a temperature of 67 degrees F and provides up to 2 gallons of hot water per minute. It is said to save about 60% of the electric bill for you.
The automatically resettable thermostat and digital control console enable to help adjust water temperature easily.
- High energy efficient
- Compact and portable shape
- Easy to install
- Self-modulating system
- Automated resettable thermostat
- Lifetime manufacturer’s warranty
The water temperature is not stable
Most of the RV tankless water heaters need electric ignition before operating, however, it is capable of operating without the need for any electricity, thus it saves much money on electricity costs for you.
It handles low-level water pressure well, you can simply operate with only 8 PSI with its low-pressure start-up system. And three buttons are set on the machine, one is for gas, one is for water flow, and the other is warm and cold settings, you can adjust the temperature with the buttons.
It boasts to be 3.1 GPM capacity and thus can provide endless hot water. The auto-cutoff system is adopted to protect the heater in case of overheating or overpressure.
The compact shape of it enables you to take and install it anywhere you want.
- Handles low-level water pressure well
- Autoignition, no electricity needed
- 3.1 GPM flow rate
- Low-pressure startup
- Auto cutoff system
Water temperature is hard to adjust the exact one you want
This RV tankless water heater is able to provide constant hot water for you. It is the most ideal one for fishing, camping, traveling, and other outdoor activities. You can enjoy endless hot water for bathing on RV.
It has great safety protection systems, including auto shut off protection and anti-dry combustion system. When water temperature exceeds 167 degrees F, it will shut off automatically in case of overheating.
Also, there is an anti-off-balance protection system, the water shuts off gas supply automatically when the off-balance occurs. The heater is able to deliver an average of 0.8 gallons of water per minute, the output power requirement is 18000 BTU per hour.
It weighs only 17.5 lbs, and compact shape makes it easy to be installed anywhere on the vehicle, you can even install it under the hand sink for handwashing.
- Compact and portable shape
- Anti-dry combustion protection
- Anti-off-balance protection
- Instant hot water anytime you want
- Instant heat within 10seconds
It tries to pump even when you turn the machine off, not good for the pump
This tankless water heater has a relatively large flow rate among RV tankless heater market, reaching 3.6 gallons per minute. Thus it is able to provide constant hot water for you any time you want. Besides, it can also be used for small or middle-sized home use.
It adopts safe electronic ignition system, you can just plug it into standard 120v electrical outlet with UL-listed cord.
The water temperature is easy to set by adjusting water flow and gas, but of course, it is quite hard to get the exact temperature you want. The water temperature shows on the screen.
It is also designed compact and light, perfect for saving much space when traveling outside or use in a small cabin. The working noise is so low that you can hardly hear it in the working process.
- Energy efficient
- Easy to read digital temperature display
- Compact shape design
- Safe electronic ignition system
- Large flow rate
- Endless hot water supply
Difficult to get the exact temperature you want
Features of RV Tankless Water Heater
Nearly all the RV tankless hot water heaters are designed small and compact, when you install it in RV or small home, it occupies an only small piece of land. And some of which can even be installed directly under water sink.
2. No waiting time
It heats water in a second, you can use hot water any time you want.
3. Energy efficient
Most of RV tankless water heaters are propane types, it uses 50% less propane than other types of heaters, thus is more energy-efficient and saves a large sum of money on heating costs each month.
RV Tankless Water Heater vs Tank Water Heater
Safety of both water heaters are quite the same, they are both equipped with protection systems, such as overheating and overpressure devices to cut off the machine automatically. Some are also designed with freeze protection to use in cold weathers or cold regions.
2. Waiting time
Tankless water heater needs no waiting time for heating, you can use it anytime you want and do not need to worry about running out of the water, thus not much cold water is wasted.
On the other hand, on using a tank water heater, you need to pump out all the cold water in the pipe, which is costly in energy and wastes a large amount of water.
The tankless water heater is designed simple and compact, multiple colors and styles can be chosen, it can even become one of your decorations in your bathroom or kitchen. And compact shape saves much space for you.
Most of the tank water heaters are designed into white or black, pipes and power supply is exposed outside. And the large tank occupies large space. You can only install it on your bathroom wall.
The Best RV Tankless Water Heaters
- Camplux 5L 1.32 GPM Tankless Water Heater – Best selling type
- PrecisionTemp RV-550 Tankless Water Heater – Best point of use type
- Excel Tankless Gas Water Heater – Best one for outdoor shower
How to Look for Best RV Tankless Water Heater?
Choosing the best RV tankless water heater is able to save much money for you for a long term of use, it helps save energy and heating costs to a large extent. But there are a few factors you need to consider before choosing:
Each of the recreational vehicles is different in size, thus you need to know how large tankless water heater fits your RV mostly. And whether you intend to install it underwater sink or on the bathroom wall.
2. Water consumption
Before choosing, you should estimate the amount of water you need on RV, and then select a suitable one according to your average amount of water. Besides, the flow rate of each tankless water heater also differs a lot, the flow rate refers to the amount of water machine releases each minute.
Average RV tankless water heater price is around $500, but there are also cheaper and more expensive ones. Before buying, you need to pick according to your budget. Apart from purchasing price, there are also installation costs and using costs you need to consider.
4. Power source
There are altogether three power source on tankless water heaters, battery-powered, propane and electric tankless water heaters for RV use. Compared with electric type, battery-powered and propane types are more portable, while electric tankless water heater needs to be connected when using.
5. Smart protection
Most of RV tankless hot water heaters are equipped with smart protection systems, such as overheating devices and freeze protection devices. Those smart functions are able to protect the machine automatically when in dangerous situations and thus prolongs the service life of heaters.
Maintenance costs are quite expensive, thus choosing a heating machine that needs light maintenance is pretty important and helps save a large sum of money for you.
Types of RV Tankless Water Heaters
There are two main types of RV tankless water heaters on the market of 2019, one is electric type while the other is propane type. Both of them work perfectly in traveling or outdoor using. Electric tankless water heaters need less installing time and it works pretty quietly in whole using process. While propane tankless water heaters are cheaper in whole using costs.
- Turn off the power every time you stop using
- Shut off the valve immediately
- Do not use a chemical to clean your heating machine, or it is easily corroded and service life will be shortened
- Always flush and drain under the manufacturer’s instruction
- Turn the machine on slowly so that the air can pass through the pipe
1. Can I install it under RV sink?
Yes, you can if it is small enough. When you install it under the sink, it needs no wiring or special tools in installation and helps save much space.
Also, the distance between tap and heater is close so less cold water is wasted in using, and the water bills can be saved to a large extent.
2. How to install RV tankless water heaters?
Before installing, you should pay attention to the connecting gas, water and electricity lines, etc. If you lack enough knowledge on it, you can just get a professional to help to install for you.
3. How to turn it on?
There are several steps on turning the machine on, you need to check the valve first, open it up and allow the water to flow to primary tank. Then you can connect RV to the water outlet.
|Tankless Water Heater||Best Type|
|Best selling type||Camplux 5L 1.32 GPM Tankless Water Heater|
|Best point of use type||PrecisionTemp RV-550 Tankless Water Heater|
|Best one for outdoor shower||Excel Tankless Gas Water Heater|
RV tankless water heaters are able to provide constant hot water for you when you go out for traveling or for camping. Apart from the above recommended tankless water heaters, there are still many types on Amazon that can be chosen, please feel free to check out more information or price details on it.